Apparatus for marking rubber and rubberized material



Nov. 26, 1929. c. H. DESAUTELS 5 1,737,111

APPARATUS FORMARKING RUBBER AND RUBBERIZED MATERIAL Filed March 23, 1928 i 5 INVENTOR.

AIM/121.55 H .UE'SAL/TELE.

A TTORNE Y.

' Patented Nov. 26, 1929 UNITED STATES PATENT OFFICE CHARLES H. DESAUTELS, or SPRINGFIELD, massacnusnrrs, assrenon TO THE rrsx RUBBER COMPANY, or crucornn FALLS, MASSACHUSETTS, a CORPORATION or MASSACHUSETTS APPARATUS FOR MARKING RUBBER AND RUBBERIZED TMA'IEIEIAIlZ Application filed March 23, 1928. Serial 1 264,000.

This invention relates to the manufacture of strips of rubber or rubberized material such as is used in the manufacture of rubber tires, mats, etc., and more particularly it relates to a method and means for placing a marking on such. strips as the latter are formed for ornamental or utilitarian purposes. The objects of myinvention will be apparent from the following specification and claim.

As one embodiment of my invention, I have shown in the drawings a device 'for placing a guide line on a strip of plied material.

Referring to the drawings,

Fig. 1 is an elevation of the device,.partly broken away, located on the frame of a fabric plying machine;

Fig. 2 is a view taken. substantially on line 2-2 ofFig. 1; I i

Fig. 3 is view taken substantially on line 3 3 of Fig. 1; I

Fig. 4 is an enlarged detail view of parts shown in Fig. 1; and

Fig, 5 shows a portion guide line marked upon it.

In marking or placing guide lines on strips of rubber or rubberized material, care must be taken to supply a line that can easily be seen aswell as onethat will not be easily removed or rubbed off. supply a line thatwill not injure the rubber and which will blend in with the rubber when of fabric with a it is vulcanized. I have found that by using either acoloredrubber cement or latex I will get a well defined lineof a substance that may be easily vulcanized into the strips of rubber or rubberized material.

Difliculty, however, is encountered in at.- tempting to use these materials in conventional marking devices due to the fact that the material is applied to the dies or markingprotrude.

It is also desirable toto resist air curin and my apparatus provides means where y slight curing or coagulation of the marking material will not interfere with its action. Furthermore, in my device the marking material is almost entirely ing 14. A cover 15 fitting over the face of the housing 14 is held in place against the housing by screws 16. The joining of the: cover 15 and face of the housing 14 forms a chamber 17 for the gears 10 and 11. A tight joint is formed by the cover and housing with provision left at the top for the gear 10 to The lower portion of the chamber is adapted to hold a marking fluid 18 through which the gear 11 may turn. This fluid may be supplied to the chamber by a feed pipe 19 from a reservoir 20 or, upon the closing of a valve 21 on the feed pipe, through an opening 22 in the cover 15. An adjustable scraper 23, the End 24 of which projects through the housing 14, straddles the gear 11, cleaning it as it rotates of all but the desired amount of the fluid 18. I The gear 11 is wider than the gear 10 so as to enable the teeth of gear 10 to be covered on the sides as wellas on the face with the marking fluid carried by the gear 11.

-The device, as used in the case illustrated in thedrawings, is provided with a bar 25 adjustably fitted in a bearing 26 located on a frame 27 of a rubberized fabric plying machine. 7

Although the marking device may be used in various arrangements, I have shown it intermediate a pair ofguiding rolls 28 and 29 on the frame 27. 'As the fabric travels over tate the gear 11, in mesh with the gear 10, through the marking fluid 18, the said fluid adhering to the gear. All but the desired amount of the marking fluid is taken off by the scraper 23, the remaining fluid being carried around until a portion of it is transferred to the teeth of the gear 10 in the form of small clots or globules 31. The teeth of the gear 10 will then, during its rotation, deposit these clots on the fabric, forming, as shown espe- 'cially in Fig. 5, a dotted line 32.

The device may be set by means of the adjustment between the bar 25 and the bearing 26 so that the marking will come at any desired place on the fabric. As shown in the m drawings, the marking has been put in the 'center of the fabric. This marking may be varied by replacing the gears with other gears of different pitch causing, as the case may be,

- either wider or narrower spaces between the 15 clots. Marking gears having their alternate teeth out out may also be used to vary the dotted line.

A measuring device 33 may also be added to the frame-27 between the guiding rolls 28 go and 29.

' Having thus described --my invention, I- claim:

A device for marking a web of vulcanizable material which comprises a housing adapted.

5 to hold rubber cement in fluid form, a gear rotatable within the housing and positioned to turn through and carry a portion of the cement, an adjustable scraper straddling the toothed edge of the gear and adapted to re- 30 move the cement from the sides of the gear teeth, a second gear meshing with the cement carrying gear to receive the cement from the recesses between the teeth of the first gear in the form of globules adhering to the ends of the teeth of said second gear and means to guide a web of vulcanizable material over said second gear to thereby drive the gears and deposit the globules of cement, carried by the second'gear, in spaced relation upon a the web.

CHARLES H. DESAUTELS. 

